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Sewerage Systems, Holtwood, Pennsylvania. NPDES permit PA0082147 expired Apr 30, 2026; its limits still apply. Last 12 months: no values over a limit, 14 required values missing. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| Oxygen, dissolved [DO] | instantaneous minimum | ≥ 5 mg/L | all year |
| pH | instantaneous minimum | ≥ 6 SU | all year |
| pH | instantaneous maximum | ≤ 9 SU | all year |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year |
| Nitrogen, total [as N] | annual average | report only (mg/L) | all year |
| Nitrogen, total [as N] | annual total | report only (lb/yr) | all year |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 10.5 mg/L | Jan, Feb, Mar, Apr, Nov, Dec |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 3.5 mg/L | May–Oct |
| Nitrogen, Kjeldahl, total [as N] | annual average | report only (mg/L) | all year |
| Nitrogen, Kjeldahl, total [as N] | annual total | report only (lb/yr) | all year |
| Nitrite + Nitrate total [as N] | annual average | report only (mg/L) | all year |
| Nitrite + Nitrate total [as N] | annual total | report only (lb/yr) | all year |
| Phosphorus, total [as P] | monthly average | ≤ 2 mg/L | all year |
| Phosphorus, total [as P] | monthly total | report only (lb/mo) | all year |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year |
| Chlorine, total residual | monthly average | ≤ .21 mg/L | all year |
| Chlorine, total residual | instantaneous maximum | ≤ .69 mg/L | all year |
| Phosphorus, Total | annual total | report only (lb) | all year |
| Coliform, fecal general | geometric mean | ≤ 2000 #/100mL | Jan, Feb, Mar, Apr, Oct, Nov, Dec |
| Coliform, fecal general | geometric mean | ≤ 200 #/100mL | May–Sep |
| Coliform, fecal general | instantaneous maximum | ≤ 10000 #/100mL | Jan, Feb, Mar, Apr, Oct, Nov, Dec |
| Coliform, fecal general | instantaneous maximum | ≤ 1000 #/100mL | May–Sep |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 25 mg/L | all year |
Cited limits by parameter: Pennsylvania's rules and the federal ones.
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On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/PA0082147 · MCP: https://passage-data.com/mcp